Success.aiAI-powered lead generation and cold email outreach platform for sales teams.

4.3 (6)

Reviewed by Daniel Nikulshyn·Updated July 2026

Overview

Success.ai is a sales prospecting platform that combines a large B2B contact database with AI-driven cold email outreach tools. Users can search verified business emails and phone numbers, build targeted lead lists, and launch multi-inbox email campaigns with automated warm-up and deliverability features. The platform is designed for sales teams, agencies, and founders looking to scale outbound efforts without juggling multiple tools. AI features help write and personalize emails, while analytics track opens, replies, and meetings booked. A free tier offers limited email lookups, making it accessible for solo users testing prospecting workflows.

Key features

B2B email and phone number finder
AI cold email campaign builder
Automated inbox warm-up
Multi-inbox sending and rotation
Campaign analytics and reply tracking
Lead list segmentation and filters

Pricing

Model: Freemium
Category: Task automation
Rating: 4.3 / 5 (6)

Use cases

B2B Lead Generation

Success.ai helps sales teams discover new leads and access verified contacts for targeted outreach, enabling them to reach their ideal customers.

Cold Email Outreach

The platform allows teams to send unlimited emails and warm up their domain to boost sender reputation, simplifying email management and increasing campaign success.

Data Enrichment and Verification

Success.ai provides access to 700M+ data points of potential buyers' emails and phone numbers, as well as tools for enriching data, verifying emails, and finding phone numbers.

Pros & Cons

Pros

Large verified B2B contact database
Unlimited email sending across multiple inboxes
Built-in email warm-up improves deliverability
AI-assisted email writing and personalization
Free plan available for testing

Cons

Data accuracy can vary by region or industry
Learning curve for new outbound users
Advanced features require paid plans
Email volume limits on lower tiers

Reviews

4.3

Average from 6 ratings.

Sanjay Gupta

May 3, 2026

Compared a few options

Evaluated this against two competitors. Where it wins: aI cold email campaign builder and free plan available for testing. Where it lags: email volume limits on lower tiers. On balance the feature set — especially b2B email and phone number finder — justifies the 4 stars for our use case.

Leila Hassan

Mar 13, 2026

Years in this space

I've evaluated a lot of these over the years. What stands out here is lead list segmentation and filters — handled better than most — and large verified B2B contact database. Worth the time if this is your use case.

Carlos Mendoza

Feb 6, 2026

Solid for our team

We rolled this out across the team last quarter and built-in email warm-up improves deliverability. Automated inbox warm-up fits neatly into how we already work, and campaign analytics and reply tracking removed a step we used to do by hand. Advanced features require paid plans, which is the main caveat, but it has held up under daily use.

Joanna Kowalski

Dec 15, 2025

Does the job

Pretty happy overall. AI cold email campaign builder just works and unlimited email sending across multiple inboxes. Advanced features require paid plans can be annoying, but no dealbreakers — I'd recommend it to a friend without hesitating.

Yuki Mori

Oct 16, 2025

Use it every day

Honestly didn't expect to like it this much. Automated inbox warm-up is exactly what I needed, and free plan available for testing. I do wish advanced features require paid plans, but I reach for it almost every day now and it just clicks.

Sofia Lindqvist

Sep 22, 2025

Years in this space

I've evaluated a lot of these over the years. What stands out here is automated inbox warm-up — handled better than most — and unlimited email sending across multiple inboxes. Worth the time if this is your use case.